1. a Selçuk University, Faculty of Education , Meram Yeniyol, Konya, Turkey
2. b General Directorate of Mineral Research and Exploration , Çankaya, Ankara, Turkey
3. c Gazi University, Faculty of Education, Chemistry Education , Beşevler, Ankara, Turkey
4. d Hitit University, Faculty of Arts and Sciences, Department of Chemistry , Çorum, Turkey